CN214380854U - Background suppression photoelectric sensing device - Google Patents
Background suppression photoelectric sensing device Download PDFInfo
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- CN214380854U CN214380854U CN202120351446.4U CN202120351446U CN214380854U CN 214380854 U CN214380854 U CN 214380854U CN 202120351446 U CN202120351446 U CN 202120351446U CN 214380854 U CN214380854 U CN 214380854U
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- housing
- photoelectric sensing
- background
- sensing device
- shell
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Abstract
The utility model discloses a background suppression photoelectric sensing device, including shell, button, PCB board, colour sensor, transmitter, microcontroller and signal output element, the button is located on the shell, the button is connected with the PCB board, the PCB board is located in the shell, colour sensor, transmitter, microcontroller and signal output element weld on the PCB board; the shell is provided with a transmitting lens and a receiving lens, the transmitter is close to the transmitting lens, and the color sensor is close to the receiving lens. The utility model discloses structurally simplify, do not have movable element, changed traditional background and restrained photoelectric sensor and must rely on adjusting screw to carry out the mode that the distance was adjusted, have intelligent self-setting function, improved current photoelectric sensor detection distance and can be along with the colour difference that is detected the object and the problem that changes appears.
Description
Technical Field
The utility model relates to a sensor field especially relates to a background suppression photoelectric sensing device.
Background
In the prior art, the mainstream design scheme of the existing background suppression light sensor in the market is to adopt a mechanical adjustment receiving lens, a receiving device is a double-receiving photosensitive diode, and the basic principle is as follows: the receiver is divided into a far-end area and a near-end area, the intensity of light reflected back by different near-far target bodies in the near-far area is different, and when the receiving light intensity of the near-end area is greater than that of the far-end area, the detection distance can be changed by adjusting the receiving lens for detecting the target bodies. The scheme can not realize automatic setting of the distance and is inconvenient to use.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a background suppression photoelectric sensing device is provided to solve the above technical problems.
The technical scheme of the utility model as follows: a background suppression photoelectric sensing device comprises a shell, a key, a PCB (printed circuit board), a color sensor, an emitter, a microcontroller and a signal output element, wherein the key is arranged on the shell and connected with the PCB;
the shell is provided with a transmitting lens and a receiving lens, the transmitter is close to the transmitting lens, and the color sensor is close to the receiving lens.
By adopting the technical scheme, the background suppression photoelectric sensing device further comprises the light emitting diode, the light emitting diode is arranged on the shell, the anode of the light emitting diode is connected with the power supply, and the cathode of the light emitting diode is connected with the microcontroller.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the signal output element is an output triode.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the output triode is an NPN type triode.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the output triode is a PNP type triode.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the emitter is an infrared diode.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the emitter is a visible light diode.
By adopting the technical scheme, in the background suppression photoelectric sensing device, the shell comprises a first shell and a second shell, the first shell is provided with a clamping groove, the second shell is provided with a clamping hook, and the clamping hook is connected with the clamping groove to fix the first shell and the second shell.
Adopt above-mentioned each technical scheme, background suppression photoelectric sensing device in, the tip that first casing is close to the second casing is provided with the sand grip, the second casing be provided with the recess of sand grip adaptation.
By adopting the above technical solutions, in the background suppression photoelectric sensing device, the first casing or the second casing is provided with a through mounting hole.
Adopt above-mentioned each technical scheme, the utility model discloses structurally simplify, do not have movable element, changed traditional background and restrained photoelectric sensor and must rely on adjusting screw to carry out the mode of distance adjustment, have intelligent self-setting function, improved current photoelectric sensor detection distance and can be along with the colour difference that is detected the object and the problem that changes appears.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention;
fig. 2 is a schematic diagram of the signal flow direction of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the present embodiment provides a background suppression photoelectric sensing apparatus, which includes a housing, a detection distance module, a PCB board 3, a color sensor 4, an emitter 5, a microcontroller 6, and a signal output element 7. The detection distance module is set to be the key 2 in the embodiment, the key 2 is arranged on the shell, and the current measurement distance is set to be the detection distance through the key 2. Of course, the distance detection module is not limited to a specific key, and may be set in other ways such as writing a code in advance or serial communication, and is not limited to be set only by the key 2.
The button 2 is connected with the PCB board 3, and the PCB board 3 is arranged in the shell. The color sensor 4, the emitter 5, the microcontroller 6 and the signal output element are soldered to the PCB board 3, wherein the color sensor 4, the emitter 5, the microcontroller 6 and the signal output element 7 are not represented in fig. 1. The emitter 5 is an infrared diode or the emitter 5 is a visible light diode.
As shown in fig. 1, the housing includes a first housing 101 and a second housing 102, the first housing 101 is provided with a slot (not shown), the second housing 102 is provided with a hook 1021, and the hook 1021 is connected with the slot to fix the first housing 101 and the second housing 102. The end part of the first shell 101 close to the second shell 102 is provided with a convex strip 1011, the second shell 102 is provided with a groove 1022 matched with the convex strip 1011, and the convex strip 1011 and the groove 1022 are matched and clamped, so that the sealing performance of the shell can be enhanced.
As shown in fig. 1, in order to facilitate mounting of the fixing device, a mounting hole 1013 is provided through the first housing 101 or the second housing 102. Meanwhile, the surface of the shell can be provided with anti-slip strips 1012 to play a role of anti-slip of the shell.
As shown in fig. 1, the housing is provided with a transmitting lens 8 and a receiving lens 9, the transmitter 5 is close to the transmitting lens 8, and the color sensor 4 is close to the receiving lens 9.
As shown in fig. 1, a light emitting diode 10 is further included to indicate the current output status. The light emitting diode 10 is arranged on the shell, the anode of the light emitting diode 10 is connected with a power supply, and the cathode of the light emitting diode 10 is connected with the microcontroller 6.
The signal output element 7 is an output triode, and the output triode is an NPN type triode or a PNP type triode. Namely, the photoelectric sensing device has two signal output modes, namely NPN signal output or PNP signal output.
As shown in fig. 2, the principle of the present invention is: microcontroller 6 at first controls emitter 5, outputs a fixed output light intensity, and then microcontroller 6 passes through color sensor 4, gathers the colour value of target 11, and microcontroller 6 guarantees under the same distance that the reflection signal of different colours is received by color sensor 4 basically the same according to colour value control emitter 5's output light intensity size. The microcontroller 6 calculates the measurement distance according to the size of the reflected signal, and finally the microcontroller 6 compares the measurement distance with the detection distance to enable the high and low levels output by the signal output element 7 to be different.
Adopt above-mentioned each technical scheme, the utility model discloses structurally simplify, do not have movable element, changed traditional background and restrained photoelectric sensor and must rely on adjusting screw to carry out the mode of distance adjustment, have intelligent self-setting function, improved current photoelectric sensor detection distance and can be along with the colour difference that is detected the object and the problem that changes appears.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A background suppression photoelectric sensing device is characterized by comprising a shell, a detection distance module, a PCB (printed Circuit Board), a color sensor, an emitter, a microcontroller and a signal output element, wherein the detection distance module is arranged on the shell and connected with the PCB;
the shell is provided with a transmitting lens and a receiving lens, the transmitter is close to the transmitting lens, and the color sensor is close to the receiving lens.
2. The background-suppressed photoelectric sensing device according to claim 1, further comprising a light emitting diode, wherein the light emitting diode is disposed on the housing, an anode of the light emitting diode is connected to a power source, and a cathode of the light emitting diode is connected to the microcontroller.
3. The background-suppressing photoelectric sensing device of claim 1, wherein the signal output element is an output transistor.
4. The background suppression photoelectric sensing device according to claim 3, wherein the output transistor is an NPN transistor.
5. The background-suppressing photoelectric sensing device according to claim 3, wherein the output transistor is a PNP transistor.
6. The background-suppressed photoelectric sensing apparatus according to claim 1, wherein the emitter is an infrared diode.
7. The background-suppressed photoelectric sensing apparatus according to claim 1, wherein the emitter is a visible light diode.
8. The background suppression photoelectric sensing device according to claim 1, wherein the housing comprises a first housing and a second housing, the first housing is provided with a locking groove, the second housing is provided with a hook, and the hook is connected with the locking groove to fix the first housing and the second housing.
9. The background-suppressing photoelectric sensing device of claim 8, wherein the end of the first housing near the second housing is provided with a protruding strip, and the second housing is provided with a groove adapted to the protruding strip.
10. The background-suppressed optoelectronic sensing apparatus as set forth in claim 8, wherein the first housing or the second housing is provided with a mounting hole therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120351446.4U CN214380854U (en) | 2021-02-05 | 2021-02-05 | Background suppression photoelectric sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120351446.4U CN214380854U (en) | 2021-02-05 | 2021-02-05 | Background suppression photoelectric sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380854U true CN214380854U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120351446.4U Active CN214380854U (en) | 2021-02-05 | 2021-02-05 | Background suppression photoelectric sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214380854U (en) |
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2021
- 2021-02-05 CN CN202120351446.4U patent/CN214380854U/en active Active
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